The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 15, 2022

Filed:

May. 26, 2021
Applicant:

Hitachi High-tech Corporation, Tokyo, JP;

Inventors:

Yohei Minekawa, Tokyo, JP;

Kohei Chiba, Tokyo, JP;

Muneyuki Fukuda, Tokyo, JP;

Takanori Kishimoto, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/22 (2006.01); H01J 37/26 (2006.01); H01J 37/28 (2006.01);
U.S. Cl.
CPC ...
H01J 37/222 (2013.01); H01J 37/263 (2013.01); H01J 37/265 (2013.01); H01J 37/28 (2013.01);
Abstract

Provided is a technique capable of achieving both throughput and robustness for a function of adjusting brightness (B) and contrast (C) of a captured image in a charged particle beam device. The charged particle beam device includes a computer system having a function (ABCC function) of adjusting the B and the C of an image obtained by imaging a sample. The computer system determines whether adjustment is necessary based on a result obtained by evaluating a first image obtained by imaging an imaging target of the sample (step S), executes, when the adjustment is necessary based on a result of the determination, the adjustment on a second image of the imaging target to set an adjusted B value and an adjusted C value (step S), and captures a third image of the imaging target based on the adjusted setting values to generate an image for observation (step S).


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